For more than a decade, the United States has nurtured a secret intelligence partnership with Ukraine that is now critical for both countries in countering Russia.
www.nytimes.com
New NYT article including some exclusive interviews about CIA and Ukrainian intelligence relations from post-Euromaidan Ukraine till now.
First history is about Nalyvaichenko became the Head of SBU after Euromaidan and became CIA trusted allies in Ukraine. SBU made Fifth Directorate headed by General Kondratiuk.
After Poroshenko changed the head of SBU with his ally
1, US lost its close ally but new comer came. General Kondratiuk became the head of HUR of the military and started to worked with CIA. HUR is seen as better even, because not just domestic intelligence they are focusing here but also foreign. Even what named as Operation Goldfish they are/were not just spying on Russia, but also to Belarus and Chinese spy satellites. Only worked at night and when no satellite overhead them.
CIA through its Ground Department (Ground Branch) trained some of HUR personnel or Spetznaz called as Unit 2245, which now commander of HUR, Budanov, was served there before.
And more, read them by yourselves lol
Edited at 1. Not political ally, but just ally. Political ally was Bakanov during early Zelensky administration.